The two TCL scripts presented in the next section assume
the sequence consists of 7 textures that have been saved to the sourceimages
directory of the current Maya project directory. A brief
explanation of how to convert images to the textures can be found
here.
For the purposes of the two TCL scripts it is assumed the names of the textures
are,DCS.0001.texDCS.0002.texDCS.0003.texDCS.0004.texDCS.0005.texDCS.0006.texDCS.0007.tex

1 Number of Images Matches the Number of Frames

If the frame range of an animation matches the number of available textures the
following TCL script can be copied and pasted into the PxrTexture Filename text field.

$PROJ/sourceimages/DCS.$F4.tex

The TCL variables $PROJ and $F4 will be automatically expanded, on say
frame 5, toC:/maya/projects/21
and0005

2 Number of Images Does Not Match the Number of Frames

The following TCL script will repeatedly cycle over a sequence of textures.
The number hilited in red must match the number of available textures.